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2/24/2017
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Fenton, MI
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Johndeere506
4/4/2017 3:31pm
4/4/2017 3:31pm
My 2016 crf250r has the newer design oem head pipe. Im about to put the single fmf 4.1 exhaust on it, but wondering if the megabomb is worth adding. Is a header noticeable or worthwhile with a slip on already in place? Or just leave the stock header?
I'm not racing, but am heavier for a 250f.
I'm not racing, but am heavier for a 250f.
I would advise you get a cam(stage 2 hotcam) and send the ECU off to tokyomods for some love and youll be amazed.
Jk. In all seriousness the mega bomb makes the bike have much better low end power. The bikes usually hit quite a bit harder. I run a mega bomb on all my 4 strokes.
The Shop
The Husky and KTM GP teams have longer headers than the US teams.
KTM GP has a longer Akropovic that's not available to the public and none of the US guys like. I heard they might try them again during outdoor testing though.
Rockstar Husky GP has a longer header as well, but their's is made by FMF. The ones the 250Fs use are available, the 450 longer one isn't, as of now.
Regarding the honda, The single with mega adds some good power in spots. its been my test experience on the dyno that it looses a little on ultra early front side where you dont ever ride... which makes the gain more pronounced where you do ride. The good news is their isnt many pipes the honda doesnt like and importantly the fmf fitment is second to none with unmatched customer support.
At the beginning of the season, I believe Davalos still had the long optional header and I think the GP Husky 250 team is using them still.
The added volume to the rez chamber brings that volume in line with the oem volume, which just flat out works... ktm did their hmwk on that damn thing. Tapered start to end, well placed location on res chamber and good volume. The days of big gains on pipes is coming to close.. weight, fitment and sound...
Weight of course is equally important as power... often forgot
Any word when they will produce the bigger chamber?
It's a bummer the stock oem header is so difficult to remove
I really don't want to dump the stock header but if it's a pain to take off...
Thanks
we chased some power with port and piston, but all testing done on a stock pipe
Ride impressions from fmf users has been very positive saying it revs quicker. considering the oem header and megabomb looks very similar in resonater volume... It should be a safe bet.
I personally like how the ktm delivers power, smooth but wickedly powerful when you mash it.. so i prefer the feeling of the fmf with the sound insert.
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